package com.learning;

import com.learning.Easy;

import java.util.*;

public class Main {

    public static void main(String[] args) {
        int [][]d={{0,1,0},{0,0,1},{1,1,1},{0,0,0}};
        new Easy().reverseOnlyLetters("7_28]");
        new Middle().customSortString("cba","abcd");
//        int grid[][]={{3,0,8,4},{2,4,5,7},{9,2,6,3},{0,3,1,0}};
//        new Middle().maxIncreaseKeepingSkyline(grid);
//        Scanner scanner=new Scanner(System.in);
//        while (scanner.hasNext()){
//            int n=scanner.nextInt();
//            System.out.println(new Middle().allPossibleFBT(n));
//        }
    }
}
